Analysis of histology specimens using lifetime multiphoton microscopy.

Area of Science:

• Biomedical Imaging
• Cellular Physiology
• Pathology

Background:

• Fluorescence microscopy offers valuable insights into cellular structure and physiology.
• Limitations include spectral overlap, low signal, and light scatter, hindering practical applications.
• New imaging modalities are needed to maximize information from fluorescence signals.

Purpose of the Study:

• To apply a novel multiphoton excitation fluorescence microscope with a photon-counting detector to standard histological pathology specimens.
• To investigate the potential of measuring excited-state lifetimes of fluorescent probes for diagnostic signatures.
• To assess the utility of this technology in pathological investigations.

Main Methods:

• Utilized a multiphoton excitation fluorescence microscope.
• Incorporated a novel photon-counting detector to measure excited-state lifetimes of fluorescent probes.
• Applied the system to observe C. elegans embryos and primate histology specimens.

Main Results:

• Demonstrated the capability of lifetime multiphoton microscopy to capture detailed fluorescence information.
• Identified potentially diagnostic signatures in observed specimens.
• Showcased the system's effectiveness in initial investigations.

Conclusions:

• Lifetime multiphoton microscopy is a powerful new technology for fluorescence imaging.
• This technique has considerable potential as a diagnostic tool in pathological investigations.
• Further research can refine its application for clinical diagnostics.